1379371065 has 16 divisors (see below), whose sum is σ = 2302950528. Its totient is φ = 703678976.

The previous prime is 1379371001. The next prime is 1379371067. The reversal of 1379371065 is 5601739731.

It is a cyclic number.

It is not a de Polignac number, because 1379371065 - 2⁶ = 1379371001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1379371067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1998744 + ... + 1999433.

It is an arithmetic number, because the mean of its divisors is an integer number (143934408).

Almost surely, 2^1379371065 is an apocalyptic number.

1379371065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1379371065 is a deficient number, since it is larger than the sum of its proper divisors (923579463).

1379371065 is a wasteful number, since it uses less digits than its factorization.

1379371065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998208.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 1379371065 is about 37139.8850967528. The cubic root of 1379371065 is about 1113.1671214834.

The spelling of 1379371065 in words is "one billion, three hundred seventy-nine million, three hundred seventy-one thousand, sixty-five".